Why Southwest’s New Lithium Battery Rule Matters for Mobility Device Users

Southwest Airlines has enacted a significant new safety rule for travelers using powered wheelchairs and scooters. The policy, effective September 25, 2025, mandates that passengers remove lithium-ion batteries from their mobility devices before check-in. These batteries must then be carried into the aircraft cabin, a move reported by The Street to mitigate fire risks.

The airline confirmed the change in an internal memo from Vice President of Safety and Security, Dave Hunt. He stated that while rare, lithium batteries are a leading cause of onboard smoke and fire incidents. This proactive step aims to enhance safety for all passengers and crew.

New Rule Details and Upcoming 2026 Restrictions

Under the new rule, removed batteries will not count toward a passenger’s carry-on or personal item allowance. This is designed to ease the burden on travelers who rely on these essential devices. The policy brings Southwest in line with existing Federal Aviation Administration (FAA) guidance on battery transportation.

A more stringent restriction will follow on January 11, 2026. From that date, lithium batteries used with mobility devices must not exceed a rating of 300 watt-hours. This aligns with FAA limits for spare batteries, which allow one up to 300 Wh or two smaller ones up to 160 Wh each.

Safety Concerns Drive Airline’s Decision

The decision is driven by growing safety data. Lithium-ion batteries can overheat and potentially cause fires, especially if damaged. According to FAA figures, there were dozens of such incidents involving smoke, fire, or extreme heat in recent years.

Southwest positions itself as an early adopter of these heightened standards. Dave Hunt emphasized that having batteries in the cabin allows for quick access and response by flight crews in the event of an issue. Visibility is critical for managing any potential thermal event effectively.

Potential Impact on Travelers with Disabilities

While Southwest estimates fewer than 0.1% of passengers will be directly affected, the change has raised concerns. Advocacy groups point to the practical challenges for individuals with limited mobility. Removing heavy, integrated batteries can be a significant physical hurdle.

According to People magazine, some commenters expressed that this could effectively prevent solo travel for those dependent on powered chairs. The airline acknowledges the inconvenience but stresses that safety is the non-negotiable priority behind this difficult decision.

The new Southwest Airlines lithium battery policy represents a major shift in how passengers with disabilities prepare for air travel. Balancing undeniable safety needs with accessibility remains a complex challenge for the entire aviation industry.

Info at your fingertips-

When does the new Southwest Airlines policy start?

The rule requiring battery removal took effect on September 25, 2025. The stricter watt-hour limit begins on January 11, 2026.

What exactly do passengers need to do now?

Travelers must remove the lithium-ion battery from their mobility device before checking it. They must carry the battery with them into the passenger cabin.

Does the battery count as a carry-on item?

No. Southwest has confirmed that the battery will not count toward the passenger’s carry-on or personal item limit.

What is the new battery size limit in 2026?

Starting January 11, 2026, permitted lithium batteries cannot exceed 300 watt-hours. Larger batteries will be prohibited.

Why is Southwest making this change?

The airline cites safety data showing lithium batteries are a common source of onboard incidents. The change allows crew to respond faster to any potential battery fire.

How are travelers reacting to the news?

Some members of the disabled community have expressed concern. They worry about the physical difficulty of removing batteries and the impact on independent travel.

Trusted Sources: The Street, Federal Aviation Administration (FAA), People Magazine.